package {{apiProviderPackage}};

/**
 * A {@link {{javax}}.ws.rs.ext.ParamConverterProvider} that converts {@link {{supportPackage}}.NoExplodeList}s
 * and {@link {{supportPackage}}.NoExplodeSet}s to and from string representations.
 */ 
{{>generatedAnnotation}}
@{{javax}}.ws.rs.ext.Provider
public class NoExplodeCollectionParamConverterProvider implements {{javax}}.ws.rs.ext.ParamConverterProvider {

	@SuppressWarnings("unchecked")
	@java.lang.Override
	public <T> {{javax}}.ws.rs.ext.ParamConverter<T> getConverter(java.lang.Class<T> rawType, java.lang.reflect.Type genericType, java.lang.annotation.Annotation[] annotations) {
		if (rawType == {{supportPackage}}.NoExplodeList.class || rawType == {{supportPackage}}.NoExplodeSet.class) {
			return ({{javax}}.ws.rs.ext.ParamConverter<T>) new {{javax}}.ws.rs.ext.ParamConverter<{{supportPackage}}.NoExplodeCollection<?>>() {

				@java.lang.Override
				public {{supportPackage}}.NoExplodeCollection<?> fromString(java.lang.String value) {
					java.lang.String[] values = value.split(",");
					{{supportPackage}}.NoExplodeCollection<T> result;
					try {
						result = ({{supportPackage}}.NoExplodeCollection<T>) rawType.getDeclaredConstructor().newInstance();
					} catch (java.lang.InstantiationException | java.lang.IllegalAccessException | java.lang.IllegalArgumentException | java.lang.NoSuchMethodException | java.lang.SecurityException e) {
						throw new java.lang.IllegalStateException(e);
					} catch (java.lang.reflect.InvocationTargetException e) {
						throw new java.lang.IllegalStateException(e.getCause());
					}
					result.addAll(java.util.stream.Stream.of(values).map(string -> {
						return convertFromString(string, rawType);
					}).collect(java.util.stream.Collectors.toList()));
					return result;
				}

				@java.lang.Override
				public java.lang.String toString({{supportPackage}}.NoExplodeCollection<?> collection) {
					return collection.stream()
						.map(java.lang.Object::toString)
						.collect(java.util.stream.Collectors.joining(","))
						;
				}

			};
		} else {
			return null;
		}
	}

	@java.lang.SuppressWarnings("unchecked")
	private <T> T convertFromString(java.lang.String value, java.lang.Class<T> rawType) {
		if (value == null) {
			return null;
		}

		java.lang.Exception latestException = null;

		/* Look for a static valueOf(String) method. */
		try {
			java.lang.reflect.Constructor<? extends T> constructor = rawType.getConstructor(new Class<?>[] { java.lang.String.class });
			return constructor.newInstance(new java.lang.Object[] { value });
		} catch (NoSuchMethodException e) {

		} catch (java.lang.SecurityException e) {
			latestException = e;
		} catch (java.lang.InstantiationException e) {
			latestException = e;
		} catch (java.lang.IllegalAccessException e) {
			latestException = e;
		} catch (java.lang.IllegalArgumentException e) {
			latestException = e;
		} catch (java.lang.reflect.InvocationTargetException e) {
			throw new java.lang.RuntimeException("Cannot convert to string: " + rawType.getName(), e.getTargetException());
		}

		/* Look for a static valueOf(String) method. */
		try {
			java.lang.reflect.Method valueOf = rawType.getMethod("valueOf", new java.lang.Class<?>[] { java.lang.String.class });
			return (T) valueOf.invoke(null, new java.lang.Object[] { value });
		} catch (java.lang.NoSuchMethodException e) {
			
		} catch (java.lang.SecurityException e) {
			latestException = e;
		} catch (java.lang.IllegalAccessException e) {
			latestException = e;
		} catch (java.lang.reflect.InvocationTargetException e) {
			throw new java.lang.RuntimeException("Cannot convert to string: " + rawType.getName(), e.getTargetException());
		}

		/* Look for a static parse(CharSequence) method, e.g. the Java 8 LocalDate, etc classes. */
		try {
			java.lang.reflect.Method valueOf = rawType.getMethod("parse", new java.lang.Class<?>[] { java.lang.CharSequence.class });
			return (T) valueOf.invoke(null, new java.lang.Object[] { value });
		} catch (NoSuchMethodException e) {

		} catch (java.lang.SecurityException e) {
			latestException = e;
		} catch (java.lang.IllegalAccessException e) {
			latestException = e;
		} catch (java.lang.reflect.InvocationTargetException e) {
			throw new java.lang.RuntimeException("Cannot convert to string: " + rawType.getName(), e.getTargetException());
		}
		
		if (latestException != null) {
			throw new java.lang.RuntimeException("Cannot convert to string: " + rawType.getName(), latestException);
		} else {
			throw new java.lang.RuntimeException("Cannot convert to string: " + rawType.getName());
		}
	}
	
}